Dart marker for fabrics



April 5,1949. A. ALCAMO DART MARKER FOR FABRICS Filed Aug. 19, 1947 2 Sheets-Sheet lA .K INV BY/ A,/L

Apl5,l949. A.ALcAMo DART MARKER FOR FABRICS 2 Sheets-Sheet 2 Filed Aug. 19, 1947 Patented Apr. 5, 1949 UNITED STATES PATENT OFFICE DART MARKER FOR FABRICS Antonino Alcamo, Brooklyn, N. Y. Application August 19, 1947, Serial No. 769,440

4 claims. 1

The present invention relates to a dart marking device and is particularly directed to the mass marking of super-imposed layers of fabric to be cut into parts forming complete garments.

A principal object of the present invention is to provide a device which marks each piece of cloth superimposed in a pile from ve inches to seven inches in height.

A further object of this invention is to provide a cloth marking device which is both accurate and elcient in operation.

.Still further objects and advantages, and improvements will be apparent from the following description of the invention taken in connection with the accompanying drawings, in which:

Figure 1 is a side elevation of the present invention.

Figure 2 is a section taken along 2-2 of Figure 1.

Figure 3 is a detailed View in section of the pump mechanism.

Figure 4 is a cross sectional view in detail of the hollow needle and needle holder.

Figure 5 is a vertical sectional view of the hollow needle.

Figure 6 is a section taken along 6-6 of Figure 1.

Referring now to the drawings, in which like numerals of reference are employed to designate like parts throughout the several views, and more particularly to Figure 1, a preferred embodiment of the present invention is shown consisting of a base plate I which is utilized both as a support for the device and as a holder for the pile of superimposed fabrics to be marked.

Welded or otherwise secured to the base plate I0, there is an upstanding boss I I having a longitudinally disposed bore I2 for receiving one end of a post member I3. A set screw I4 mounted on the side wall of the boss I I holds the post member I3 securely in a vertical position.

A second boss I5, similar in construction to the boss II, is slidably mounted on the upper end of the post member I3. A set screw I is mounted on the side wall of the boss I5 to secure the boss I6 at any desired position along the post meinber I3. Secured to the boss I5 is a connecting arm I1 terminating in an enlarged portion to form a bushing I 8 which supports the needle carrying mechanism as is hereinafter explained in detail.

Immediately above the boss Il a clamp I9 is secured to the post member I3 for supporting a liquid pump 20. The pump 20 (see Figure 3) consists of a cylinder 2l having an air inlet 22 in the top wall, and a cap member 23 threaded at the lower portion thereof having a liquid passageway 24.

A piston 39 is slidably mounted within the cylinder 2l and a piston rod 4I) which extends through the top wall of the cylinder 2| is connected to the piston 39. A T-pipe member 25 having interconnecting passageways 2G and 2l is threaded into the cap member 23. A nipple 28 is threaded at the inlet end of the T-member 25 having a valve seat 29 to receive a ball valve 3U which is held in a closed position by a spring member 3l. At the outlet portion of the T-member 25 there is a valve seat 32 formed thereon, upon which a ball valve 33 is kept normally seated by the force exerted by a spring 34. The spring 34 is held in position by a nipple 35 threaded to the outlet end of the T member 25. A flexible tube 36 is secured to the nipple 28 and extends to a reservoir 3l (see Figure 1). At the free end' of the tube 36 there is mounted a sinker or weighted member 38 to insure positioning the inlet end of the flexible tube 36 adjacent the bottom of the reservoir 3'! at all times.

An operating lever 4I has a handle portion 42 set at an angle to the main body portion of the lever 4I and is pivotally mounted on a pin 43 secured to the boss I5. At the free end of the lever 4I a vertically positioned connecting rod 44 is pivotally connected thereto. The rod 44 is pivotally connected at its lower end to the piston rod 40.

A rider post 45 which is slidably mounted within the bushing I8 has a longitudinal key way 45 thereon. A key 46 secured to the inner wall of the bushing I8 is fitted into the key way 45 to prevent rotational movement of the rider post 45 (see Figure 6).

A coil spring 4l surrounding the upper portion of the rider post 45 abuts against the bushing I8 at one end, and at the other end by a Washer 48 held in position by a pin 49 extending through the rider post 45. A second pin 5I) extending through a bore in the lower portion of the rider post 45 abuts against the lower portion of the bushing I8 and prevents further upward movement of the rider post 45.

At the juncture of the handle 42 and the main body portion of the lever 4I, a pin 5I is rotatably mounted thereon. A lever 52 is rotatably secured at one end to the pin 5I and at its other end to a pin 53 which is mounted within a bore formed through the rider post 45. By means of this arrangement of levers, it can be seen that upon` applying pressure on the handle 42, the rider post 45 is caused to move downwardly aaginst the spring pressure 41, and upon releasing the handle 42, the rider post 45 will return to its normal position.

At the base portion of the rider post d5 and centrally disposed is a longitudinal fluid passageway 54 to which a nipple 55 is secured. Connecting the passage 54 and extending laterally of the rider post l5 is a uid passage 55 to which a nipple 51 is connected. A flexible tube 58 is connected at one end to the nipple 5i and at the other end to the nipple 35.

A hollow needle 59 having a conical shaped ilanged portion at its upper end is held securely against a conical seat on the nipple 55 by means of a winged lock nut 59. At the pointed end of the needle 60 there is an opening 6i to permit the discharge of fluid therefrom.

In the normal operation of the device, a stack of superimposed layers of fabric is placed on the base plate I with that portion of the fabric to be marked immediately below the needle Sii. Pressure is now applied on the handle G2, causing the operating lever 4l to pivot about the pin 43 in a counter-clock direction. The rider post '-35 is made to slide downwardly causing the needle 6U to pierce through the pile of fabric.

It is to be noted that the base plate has a portion cut away immediately below the line of travel of the needle 6G to prevent the needle from breaking oi (see Figure 2). As the handle 42 is pushed downwardly, the connecting rod da, piston rod 4B and piston 39 are forced in an upward direction. The suction eiect which forces the valve 30 to unseat and valve 33 to remain seated, causes the fluid to be drawn from the reservoir 31 into the cylinder 2 I.

Now, as pressure is released from the handle 42, the'coil spring d'1 forces the operating lever il to revolve in a clock-wise direction causing the connecting rod 44, piston rod 45 and piston 3E to move downwardly. The pressure exerted by the piston 39 on the liquid in the cylinder 2l causes the valve 33 to unseat and permits the liquid therein to flow through the flexible tube 58 and discharges through the opening i of the hollow needle 6B. At the same time that the liquid discharge is taking place, the needle is moving upwardly until the pin 50 abuts against the bushing i8, at which time the needle is clear of the pile of fabric and the iiow of liquid has stopped. The fabric is then moved on the base plate i8 to the next spot to -be marked, when the handle 42 is again operated. This operation is repeated until the markings on the fabric is completed.

While the invention has been described with reference to a certain preferred embodiment thereof, which gives satisfactory results, it will be understood by those skilled in the art to which the invention pertains, after understanding the invention, that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is my intention, therefore, to cover in the appended claims all such changes and modications.

What I claim as new and desire to be secured by Letters Patent is:

l. A device of the class described comprising a support, a hollow needle holder slidably mounted on said support, a pump, a lever pivotally mounted on said support, means securing one end of said lever to said pump and said other end to said hollow needle holder, a hollow needle secured to said holder, passage means communicating between said ,pumpand said hollow needle, and a handle secured to said lever adapted to cause the actuation of said needle and operation of said pump simultaneously.

2. A device of the class described comprising a base plate, a boss secured to said plate, a post member supported by said boss, a second boss secured to said post member, an arm extending from said second boss and terminating in a bushing, a rider post slidably mounted in said bushing, a coil spring surrounding said rider post above said bushing, means securing the free end of said coil spring to said rider post, means mounted on the lower portion of said rider post and adjacent said bushing adapted to limit the upward movement of said rider post, lever means, means pivotally mounting said lever means to said second bushing, a pump, clamp means securing said pump to said post member, a connecting rod connecting said pump and said lever means, means securing said other end of said lever means to said rider post, a hollow needle having an opening at its free end secured to the bottom wall of said rider post, iluid passage means connecting said pump and said hollow needle, a, uid reser- Voir, passage means connecting said pump and said reservoir, an operating handle secured to said lever means whereby actuation of said lever means causes simultaneous operation of said rider post and said pump means.

3. A fabric marking machine comprising a support, a post member secured to said support, a boss slidably mounted on said post member, means securing said boss to said post member, an arm secured to said boss terminating in a bushing, a rider post having a longitudinally disposed key way slidably mounted in said bushing, a key secured to said bushing slidably fitted in said key way, a pin secured to the top portion of said rider post, a coil spring surrounding said rider post extending between said bushing and said pin, a second pin secured to said rider post adjacent the lower portion of said bushing adapted to linut the upward movement of said rider post, a hollow needle, means securing said needle to said rider post, a pump, a reservoir, passage means connecting said reservoir and said pump, further passage means connecting said pump and said hollow needle, valve means in said passage means, a lever pivotally mounted on said boss, means connecting one end of said lever to said rider post, means connecting said other end of said lever to said pump, and an operating handle secured to said lever.

4. A dart marker comprising a base plate, a boss secured to said plate, a post member supported by said boss, a second boss slidably mounted on said post member, means securing said second boss to said post member, and arm secured to said second boss terminating in a bushing, a rider post having a longitudinally disposed key way slidably mounted in said bushing, a key secured to said bushing slidably tted in said key way, a pin secured to the top portion o said rider post, a coil spring surrounding said rider post eX- tending between said bushing and said pin, a second pin secured to said rider post adjacent the lower portion of said bushing adapted to limit the upward movement of said rider post, a hollow needle, means securing said needle to said rider post, a pump, pump operating means secured to said pump, clamping means securing said pump to said post member, a liquid reservoir, a flexible tube connecting said pump and said reservoir, weight means secured to the end of said iiexible 5 tube in said reservoir, a second flexible tube connecting said pump and said hollow needle, a valve means mounted in said pump adapted to discharge liquid to said hollow needle on the downward stroke of said pump operating means, a lever pivotally mounted on said second boss means connecting one end of said lever to said rider post, means connecting said other end to 6 said pump operating means, and a handle secured at an obtuse angle to said lever for actuating said hollow needle and said pump operating means simultaneously.

ANTONINO ALCAMO.

No references cited. 

